Answer:

meridian

Answer	Crossword Clue
MERIDIAN	Pole connector
MERIDIAN	Prime ..
MERIDIAN	Great circle that passes through the Earth's poles

MERIDIAN	Period of greatest prosperity
MERIDIAN	Noon.
MERIDIAN	Line from pole to pole.
MERIDIAN	Highest point.
MERIDIAN	Greenwich's line.
MERIDIAN	At noon.
MERIDIAN	Heavenly circle
MERIDIAN	Of noon in 1911?

MERIDIAN	Midday
MERIDIAN	Noon
MERIDIAN	Prime of life
MERIDIAN	Zenith
MERIDIAN	Prime -- (circle in geography)
MERIDIAN	It passes through the earth's poles
MERIDIAN	Circle passing through both the earth's poles
MERIDIAN	Line from pole to pole

MERIDIAN	Happening at noon